Organic Rules and Certification

Fertilization, intensity - CH Demeter Standards 2005

Schmid, Otto and Ziegler, Katia (2006) Fertilization, intensity - CH Demeter Standards 2005. [Organic rules - Differences between other regulations/standards and EEC No 2092/91]

This is the latest version of this eprint.

Find additional information in attached files:

[img]Word
20Kb
[img]Word
20Kb

Summary

The maximum amount of nitrogen that may be supplied by manures fertilizer, averaged over the crop rotation, may not exceed the amount that would be produced by those animals which the farm could support from its own fodder production (max. 2.0-2.5 LSU equivalents/ha based on the total area of the farm or less). The use of commercial organic manures is limited to this level as well.

Difference

Individual limits are set by DEMETER standards for each crop are applied for the use of fertilizers: both nitrogen and phosphorus are limited, while the EU Regulation 2092/91 in general sets a limit for nitrogen only ( 170kgN/ha and year farm yard manures).

Justification

The production of fodder and crops should be in balance with the animals kept on the farm and their production of manure. In order to keep this balance and to avoid excessive use of fertilizers DEMETER limits the use of nutrients to the effective need by the crops.

EU Regulation

Annex I. Principles of organic production and processing > A.Plant and plant products > Fertilizing - Annex I A2

Item type:Organic rules - Differences between other regulations/standards and EEC No 2092/91
Subjects:Crop production > Fertilisers
Country/Standard: Europe > Switzerland > Demeter
Principles:Ecological principle
Principle of health
ID Code:942
Deposited By:INVALID USER
Deposited On:10 May 2006
Last Modified:16 Apr 2010 13:00

Available Versions of this Item

Archive Staff Only: edit this record